The Department of Land and Natural Resources says that 19-year-old Shylo Akuna of Eleele, Kuaui, was taken into custody Thursday afternoon.

The department says in a statement late Thursday that the video, supported by witness accounts, led to Akuna's arrest.

He is being held on suspicion of "taking a monk seal," a charge that includes harassing, hunting, or capturing an endangered animal.

KHON-TV reported earlier that Kauai County police responded Tuesday to a report of the man attacking the well-known, pregnant seal while she was trying to rest in the water. Officials identified the seal as RK-30, who is easily identifiable by scars from shark bites, boat propellers and a neck entanglement.

In the dark video made around sunset, a man is shown wading into the water, swinging at the seal and possibly throwing sand at the endangered animal. It's unclear from the video if the man had a weapon. NOAA said the seal, believed to be about 17 years old, had no apparent injuries from the attack.